全文获取类型
收费全文 | 39460篇 |
免费 | 688篇 |
国内免费 | 17篇 |
专业分类
管理学 | 5264篇 |
民族学 | 195篇 |
人才学 | 5篇 |
人口学 | 3651篇 |
丛书文集 | 264篇 |
教育普及 | 1篇 |
理论方法论 | 3513篇 |
现状及发展 | 1篇 |
综合类 | 980篇 |
社会学 | 19259篇 |
统计学 | 7032篇 |
出版年
2023年 | 204篇 |
2021年 | 226篇 |
2020年 | 558篇 |
2019年 | 733篇 |
2018年 | 950篇 |
2017年 | 1293篇 |
2016年 | 926篇 |
2015年 | 707篇 |
2014年 | 904篇 |
2013年 | 6730篇 |
2012年 | 1283篇 |
2011年 | 1172篇 |
2010年 | 998篇 |
2009年 | 855篇 |
2008年 | 1015篇 |
2007年 | 1006篇 |
2006年 | 976篇 |
2005年 | 947篇 |
2004年 | 794篇 |
2003年 | 728篇 |
2002年 | 811篇 |
2001年 | 948篇 |
2000年 | 904篇 |
1999年 | 833篇 |
1998年 | 631篇 |
1997年 | 569篇 |
1996年 | 574篇 |
1995年 | 568篇 |
1994年 | 547篇 |
1993年 | 526篇 |
1992年 | 587篇 |
1991年 | 610篇 |
1990年 | 589篇 |
1989年 | 548篇 |
1988年 | 584篇 |
1987年 | 547篇 |
1986年 | 488篇 |
1985年 | 540篇 |
1984年 | 577篇 |
1983年 | 544篇 |
1982年 | 435篇 |
1981年 | 376篇 |
1980年 | 365篇 |
1979年 | 453篇 |
1978年 | 335篇 |
1977年 | 289篇 |
1976年 | 285篇 |
1975年 | 273篇 |
1974年 | 275篇 |
1973年 | 217篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
761.
762.
This research examined whether maternal adult attachment predicted the coping suggestions mothers made to their children. A sample of 157 youth (M age = 12.42, SD = 1.20) and their maternal caregivers completed semi-structured interviews and questionnaires in a two-wave longitudinal study. Results revealed that maternal insecure attachment predicted fewer engagement coping suggestions (orienting toward stress) and heightened disengagement coping suggestions (avoiding or denying stress) both concurrently and over time. These associations were found after adjusting for other relevant characteristics of the child, mother, and family context. This study contributes to our understanding of the implications of adult attachment for parenting behavior, suggesting that insecure attachment undermines a parent's ability to provide adaptive coping guidance to their children. 相似文献
763.
Research on relational aggression has drawn attention to how girls may be likely to aggress, but the role of gender is not fully understood. There are opposing views regarding whether relational aggression is most common among girls. Current findings demonstrate that when gender differences in relational aggression are assessed with peer nominations, gender differences favoring girls are more likely: (1) in adolescence than childhood; and (2) when statistical overlap with overt aggression is controlled. Results also indicated that associations of relational aggression with peer acceptance depend on the aggressor's gender, the peer rater's gender, and whether overlap with overt aggression is controlled. Associations of relational aggression with lower acceptance became non‐significant when overt aggression was controlled, suggesting that relational aggression displayed in isolation may not damage acceptance. In fact, in mid‐adolescence, girls’ relational aggression predicted greater liking by boys. Reducing relational aggression among adolescent girls may be especially challenging if the behavior is linked with acceptance by boys. 相似文献
764.
Miranda Witvliet Tjeert Olthof Jan B. Hoeksma Frits A. Goossens Marieke S. I. Smits Hans M. Koot 《Social Development》2010,19(2):285-303
To understand children's peer group affiliation, this study examined to what extent children in naturally occurring groups resemble each other on bullying, likeability, and perceived popularity. Participants were fourth‐ to sixth‐grade pupils (N = 461). Peer groups were identified using the social cognitive map procedure. Resemblance on bullying, likeability, and perceived popularity was evaluated by means of variance components models. Resemblance in peer groups was strongest for perceived popularity, followed by bullying and likeability. Moreover, resemblance on bullying could for a large part be attributed to the high‐perceived popularity of the group, and to a lesser extent, to the low likeability of the group. It is concluded that children showing bullying seem to affiliate with each other most of all to attain or maintain their position in a perceived popular peer group. Results stress the importance of considering the functionality of bullying from a group perspective. 相似文献
765.
Peer interaction is an important component of children's social repertoires that is associated with a variety of developmental outcomes and life skills. The present study provides an in‐depth study of early dyadic peer behaviors during the infancy period, during which social competence with peers is first being developed. Results from variable‐centered analyses highlight the effectiveness of behaviors, such as offering objects to peers, and point to the importance of the social context set by a peer's prior social behavior and processes for eliciting peer responses. Findings from person‐centered analyses reveal marked individual differences in the processes through which infants are successful in eliciting responses from their peers, illustrating the presence of multiple pathways to achieving social competence with peers. 相似文献
766.
Salem Village, both before and through the witchcraft trials, was a religion-based community, allowing its minister to exert a level of political–economic control over its citizens. During the height of the witchcraft episode, there was an increased demand for ministerial services (salvation) in the Salem area. Recent research has argued that the minister used the witchcraft episode to maintain and build upon personal and corporate wealth. In the years after the witchcraft trials changes were made in the business and legal environment of the surrounding New England region. By transitioning to a more neutral rules system with a larger area of consensus for the system, Salem and the rest of the New England transitioned from the 17th Century traditional, religion-based community to a more rules-based, pro-business one in the 18th Century. 相似文献
767.
We examine differences in the value of statistical life (VSL) across potential wage levels in panel data using quantile regressions with intercept heterogeneity. Latent heterogeneity is econometrically important and affects the estimated VSL. Our findings indicate that a reasonable average cost per expected life saved cut-off for health and safety regulations is 7 million to7 million to 8 million per life saved, but the VSL varies considerably across the labor force. Our results reconcile the previous discrepancies between hedonic VSL estimates and the values implied by theories linked to the coefficient of relative risk aversion. Because the VSL varies elastically with income, regulatory agencies should regularly update the VSL used in benefit assessments, increasing the VSL proportionally with changes in income over time. 相似文献
768.
Social skills and symbol skills are positively associated in middle childhood, but the relation between these domains is less clear in newly verbal toddlers. Vygotsky proposed that symbols are both tools for interaction and mental tools for thought. Do symbols help even very young children build skills for interacting with and conceptualizing the social world? Longitudinal data from 108 children and mothers were collected when children were 14, 24, and 36 months. Children's gestures and words during mother–child interactions were used as symbol skill indicators to predict children's abilities to engage others and the number of social‐emotional concepts children portray during play. In a series of growth models, words had a stronger effect on engagement skills whereas early gesture use predicted later development of social‐emotional concepts. Therefore, even in early development, symbols serve as both communication tools and mental tools to construct understanding of the social‐emotional world. 相似文献
769.
The effect of immigration on religious belief and practice: A theologizing or alienating experience?
Using data from the New Immigrant Survey, we examine the religious beliefs and practices of new legal immigrants to the United States. We find that Christian immigrants are more Catholic, more Orthodox, and less Protestant than American Christians, and that those immigrants who are Protestant are more likely to be evangelical. In addition to being more Catholic and more Orthodox than American Christians, the new immigrants are also paradoxically less Christian, with a fifth reporting some other faith. Detailed analysis of reported church attendance at places of origin and in the United States suggest that immigration is a disruptive event that alienates immigrants from religious practice rather than “theologizing” them. In addition, our models clearly show that people who join congregations in the United States are highly selected and unrepresentative of the broader population of immigrants in any faith. In general, congregational members were more observant both before and after emigration, were more educated, had more cumulative experience in the United States, and were more likely to have children present in the household and be homeowners and therefore yield biased representations of all adherents to any faith. The degree of selectivity and hence bias also varies markedly both by religion and nationality. 相似文献
770.